End carrying container



Oct. 8, 1963 Y R. E. BLACKBURN 3,106,331

- END CARRYING CONTAINER FiIed'Oct. a1; 1960 j 2 Sheets-Sheet 1 1963 R. E. BLACKBURN I 3,106,331

END CARRYING CONTAINER Filed Oct. 31, 1960 2 Sheets-Sheet 2 g I 5g 62 v 36 2 Ill/6722 07 I ficarcizfilac/ ifiurn United States Patent 3,106,331 1 END CARRYING CONTAINER Richard E. Blackburn, Milford, Ohio, assignor to Container Corporation of America, Chicago, III., a corporation of Delaware Filed Oct. 31, 1960, Ser. No. 66,200 1 Claim. (Cl. 229-27) This invention relates to containers, and more particularly to collapsible containers formed of foldable sheet material such as paperboard.

The invention comprehends an improved sift-proof container for granular material such as soap or detergent powders or flakes having a compartment at one end thereof to accommodate end carrying of the carton by means of a hand receiving opening or grip in the outer panel of a double panel end wall.

Although thebasic concept of providing a double wall construction with a hand grip opening in the outer wall is not new per se to the container art, the idea of providing this arrangement in a collapsible'rectilinear container formed of a one-piece blank does appear to be novel.

In forming a compartmented container from a onepiece blank wherein all of the vertical panels are hingedly interconnected on parallel hinge lines, the additional take-up required, by the internal folds, for folding the construction fiat results in a container which is general trapezoidal, rat-her than rectangular, in horizontal section when set up.

'With such a configuration, a problem arises in squaring the structure for the set-up and filling operations. It is believed that in the present inwention these difficulties have been overcome by the novel flap construction of one of the end wall panel closure fiaps which has been formed in a parallelogram shape configuration to cornpensate for the oblique relationship between th side wall panels and the end wall panel to'wh ic-h'the novel flaps are attached.

It is a principal object of this invention, therefore, to provide a compartmented sift-proof container having a hand grip opening in one end wall panel for end carrying.

It is a more specific object of the invention to provide, in a double-panel end wall sift-proof container formed of a one-piece blank of sheet material, an improved closure flap construction to aid in maintaining the container in rigid or squared condition during set-up and filling operations and after the container has been filled and sealed.

These and other objects will be apparent from an examination of the following description and drawings, wherein:

FIG. 1 is a perspective view of a container embodying features of the invention;

FIG. 2 is a view similar to FIG. 1, but with portions of the structure removed:

FIG. 3 is a fragmentary vertical sectional View taken on line 33 of FIGURE 1, with the container shown in completely assembled condition;

FIG. 4 is a fragmentary top plan view of the structure of FIG. 1, with certain angles exaggerated to illustrate certain features of the invention; and FIG. 5 is a plan view of the blank from which the structure of FIG. 1 is formed. It willbe apparent that certain elements have been intentionally omitted from certain views Where they are illustrated to better advantage in other views.

Referring now to the drawings for a better understanding of the invention, it will be seen that a container embodying features of the invention is formed from a onepiece blank of suitable sheet material such as foldable 3,106,331 Patented Oct. 8, 1963 paperboard which has been suitably cut and scored, as illustrated in FIG. 5, to be assembled in a manner illustrated in FIG. 1.

The container, when set up, includes spaced parallel front and rear side-wall panels 10 and 12, respectively, which are innerconnected by a vertical end Wall panel 14 hingedly attached to the front and rear side wall panels along vertical score lines 16 and 18, respectively.

At the opposite end of the container the front and rear side wall panels are innereonnected by a double panel end Wall indicated generally at 19. As best seen in FIG. 5, wall 19 includes a vertical outer panel 20, which is hin-gedly attached to rear side wall panel 12 along a vertical score line 22. Hingedly attached to the opposite edge of panel 20 along another vertical score line 24 is a vertical first glue flap 26, which in turn has hingedly attached to its opposite edge, along a vertical score line 28, an end wall inner panel 30. Hingedly attached topanel 30 along vertical score line 32 is a second vertical glue flap 34.

Referring now to FIG. 4 of the drawings, it will be seen that when the first and second glue flaps 26 and 34 are adhesively secured to the inner faces of rear and front side wall panels 12 and 10, respectively, the double end Wall 19 is provided.

As best seen in FIGURES 2 and 5, outer end wall panel 20 is provided with a generally U-shaped cut 36 to produce the hand grip opening 38. The inner end Wall panel 30 becomes, in effect, the actual retaining wall for material inthe container.

A-gain referring to FIGURE 5 of the drawings, it will be seen that panels 10, 14, 12, 20 and 30- are provided with parallel upper and lower score lines 40, 42, 44, 46 and 48 to produce closure flaps 50, 52, 54, 56 and '58, respectively.

In order to alford additional strength for the container the inner face of the blank shown in FIGURE 5 may be provided with a pair of vertically spaced upper and lower reinforcing tapes 60 and 62, respectively, which extend horizontally around the inner periphery of the container.

The lower tape 62 is preferably disposed immediately above hand grip opening 38 to serve as added reinforcement for the outer end wall panel 20 in the area of the hand grip opening.

In order to facilitate opening of the package, front side wall panel 10 may be cut as at 64 to provide a pull tab 66, and the lower tape 62 may be disposed behind the tab.

Referring now to FIGURES 1 and 3 it will be seen that to close the container, end wall flaps 52 and 56 as well as partition flaps 58 are folded into a horizontal plane. After they are in position side wall panel flaps 50 and 54 are folded into position on top of the end closure flaps.

Referring to FIGURE 4, it will be seen that, because of the additional take up in folding the container flat, due to the insert or inner end wall panel 30 and the glue flaps 26 and 3-4, the box does not set up in a truly rectangular shape, but is instead actually trapezoidal in shape, as seen from above :or in horizontal section. As best seen in FIG- URE 4, the front and rear side walls are parallel to each other, are normal to the left hand end wall, and are obliquely related to the right hand end wall. With an irregularly shaped package such as this, it is difficult to control the set-up and filling operations, because machine are adapted to take square packages. I have been able to solve the problems of forming a square-package of this type by in the shape of a parallelogram, with the outer or free edge 70 of the flap parallel to the score line 46, and with the left and right edges 74 and 76 parallel to each other and to the front and rear wall panels 10 and 12 of the container, and forming equal oblique angles with the flap outer edge and score line. By this arrangement it is possible to maintain the right hand side of the cart-on in rigid, through non-rectangular shape, while the left hand side of the carton is maintained in true rectangular shape. At all times the front and rear side wall panels are maintained in a parallel relationship with each other and at right angles to the left hand end wall 14. Although the right hand end wall 19 is obliquely angled with respect to the front and rear side wall panels, its relationship is fixed by the engagement between the side edges of the flaps 56 and the inner faces of the front and rear side wall panels, so as to maintain a rigid structure at all times.

I claim:

A collapsible sift-proof tubular container for granular material formed from a one-piece blank of suitable sheet material, such as foldable paperboard, and arranged to adopt a uniformly rigid, squared condition during filling, having an internal wall extending across the container to divide the interior of the container into separate compartments which requires additional take-up in folding flat so as to set-up in a trapezoidal shape, comprising: a pair of opposed parallel vertical side Wall panels; a pair of opposed vertical end wall panels extending between opposite ends of the side wall panels, one of said end wall panels forming with one of said side wall panels an angle of slightly less than 90, the other of said end wall panels forming with each of said side wall panels an angle of 90; a pair of generally rectangular side closure fiaps hingedly attached to the upper edges of respective side wall panels; and a pair of end closure flaps hingedly attached to the upper edges of the end wall panels, the end closure flap of said other end wall panel being substantially rectangular and having parallel free side edges extending in a direction normal to said other end wall panel, the end closure flap of said one end wall panel being in the shape of a parallelogram and having parallel free side edges obliquely related to said one end wall panel and parallel to the side wall panels to maintain the container in a rigid trapezoidal shape with the corners between the side wall panels and said other end wall in squared relation when the container is set up.

References Cited in the file of this patent UNITED STATES PATENTS 1,898,231 Weiss Feb. 21, 1933 2,019,307 Hill et al Oct. 29, 1935 2,370,079 Schmidt Feb. 20, 1945 2,643,811 Bolding June 30, 1953 2,757,853 Main Aug. 7, 1956 2,819,000 Boguss et al. Jan. 7, 1958 2,981,459 Johnson et al Apr. 25, 1961 2,990,098 Kramer June 27, 1961 

